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Fix coverity defects: CID 147654, 147690

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coverity scan CID:147654,type: Copy into fixed size buffer
- string operation may write past the end of the fixed-size
  destination buffer

coverity scan CID:147690,type: Uninitialized scalar variable
- call zfs_prop_get first in case we use sourcetype and
  share_sourcetype without initialization

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: GeLiXin <ge.lixin@zte.com.cn>
Closes #5253
This commit is contained in:
GeLiXin 2016-10-14 05:02:07 +08:00 committed by Brian Behlendorf
parent 1f51b525ff
commit 45cb520b9d
2 changed files with 3 additions and 3 deletions
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4
lib/libzfs/libzfs_changelist.c
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@ -397,8 +397,8 @@ change_one(zfs_handle_t *zhp, void *data)
char property[ZFS_MAXPROPLEN];
char where[64];
prop_changenode_t *cn;
zprop_source_t sourcetype;
zprop_source_t share_sourcetype;
zprop_source_t sourcetype = ZPROP_SRC_NONE;
zprop_source_t share_sourcetype = ZPROP_SRC_NONE;
/*
* We only want to unmount/unshare those filesystems that may inherit

2
lib/libzfs/libzfs_sendrecv.c
View File

@ -3213,7 +3213,7 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap,
/*
* Determine name of destination snapshot.
*/
(void) strcpy(destsnap, tosnap);
(void) strlcpy(destsnap, tosnap, sizeof (destsnap));
(void) strlcat(destsnap, chopprefix, sizeof (destsnap));
free(cp);
if (!zfs_name_valid(destsnap, ZFS_TYPE_SNAPSHOT)) {